JM38510/65403B2A

Latches Overview

JM38510/65403B2A is a military-grade SN54HC373 octal transparent D-type latch with 3-state outputs. It features an LCCC-20 package and operates within a -55°C to 125°C temperature range. The device supports a supply voltage of 2V to 6V, providing high-current outputs capable of driving up to 15 LSTTL loads. Key electrical characteristics include a typical propagation delay of 13ns at 6V, ±6mA output drive current, and maximum input current of 1µA.

Latches Feature Summary

• Contains eight transparent D-type latches sharing common latch enable and output enable inputs.
• Features high-current 3-state true outputs designed for driving highly capacitive or low-impedance loads.
• Provides full parallel access for loading data into the latches.

Latches Applications

• Buffer registers
• I/O ports
• Bidirectional bus drivers
• Working registers

Latches Procurement Notes

Verify that the component matches the specific military specification requirements for the JM38510 series. Confirm the LCCC-20 ceramic package integrity and ensure the operating temperature range meets the system's environmental constraints. Validate that the supply voltage and load conditions align with the HC logic family specifications provided in the datasheet.

Latches Selection Notes

Select this component when a robust, radiation-hardened or military-specification octal latch is required for harsh environments. The HC technology offers lower power consumption compared to older LS families while maintaining high-speed performance. Ensure the application utilizes the 3-state outputs effectively for bus management and that the 2V to 6V supply range fits the system design.

Latches Part Context

This part is a specialized military version of the commercial SN54HC373 octal latch. It belongs to the Texas Instruments HC (High-speed CMOS) logic family, known for wide voltage operation and low power. The JM38510 designation indicates compliance with specific military reliability standards, distinguishing it from standard commercial variants.

Latches Replacement Considerations

SN54HC373J

Latches FAQ

What is the function of the LE input?

The Latch Enable (LE) input controls transparency. When LE is high, Q outputs follow D inputs; when LE is low, the outputs are latched at the levels set at the D inputs.

How does the OE input affect the outputs?

The Output Enable (OE) input controls the 3-state condition. When OE is low, outputs actively drive high or low. When OE is high, outputs enter a high-impedance state.